Best time to send email: a send schedule for your recipients' time zones
The best time to send an email is the time it arrives when your recipients read mail, in their time zone, not yours. Published studies point to weekday mornings local time, but audiences differ. Paste where your recipients are, choose a local arrival time, and the calculator gives the send time for each time zone in your own clock.
The send time and window are your choice; blank date means the next weekday. The window is used for the one-send option.
Sample result
Send in 3 batches so all 2,740 recipients get it at 9:00 AM their time.
- Send batches
- 3
- Recipients placed
- 2,740
- Time zones
- 3
What this means for you
Each time zone gets your email at the same local hour, not in the middle of their night.
- Zones, cities, offsets or US/Canada numbers
- One send time per recipient time zone
- Daylight saving from the browser's zone data
- Download the schedule as CSV
- Time zones
- Scheduling
- CSV
By SimpleVerifier Team · Last updated · Runs in your browser; nothing you paste is sent to us
How do I schedule emails for different time zones?
- Paste one location per line: an IANA time zone (America/Chicago), a city (London), a UTC offset (UTC+5:30) or a US or Canadian phone number. Add a count after a comma to weight a line, such as Europe/Berlin, 300.
- Leave Your time zone blank to use this device's, or type a city or zone. Pick the send date and the local time you want mail to arrive.
- Optionally set a local window, such as 8 to 11 AM, for the one-send option, and whether only weekdays count.
- Press Build the send schedule and read the batch times in your own time zone. Download the CSV to load the batches into your sending tool.
Example
- You enter
- Three lines,
America/New_York, 1200,America/Chicago, 640andAmerica/Los_Angeles, 900, sent from Europe/London for 9:00 AM local on Tuesday 3 November 2026. - You get
- Three batches covering all 2,740 recipients: 2:00 PM, 3:00 PM and 5:00 PM London time, each landing at 9:00 AM in the recipient's zone, with a CSV of the schedule.
- Limits
- No limit; runs in your browser.
What is the best time to send an email?
There isn't one time that works for every list, but the studies that publish their data agree on the pattern: weekday mornings in the recipient's local time. Belkins' 2026 study of its B2B outreach found sends between 8 AM and 12 PM had the highest reply rate (0.54%) and meeting rate of any window. MailerLite's analysis of its customers' newsletters found the highest open rates between 8 and 11 AM local time on most weekdays, while clicks peaked in the evening.
Both are one company's data about its own senders, and the differences between good slots are small. Treat them as a starting point, then test against your own results with the A/B test calculator. Whatever time you choose, it only means something in the recipient's time zone, which is what this calculator handles.
What is the best time to send cold emails?
Early on a weekday in the prospect's time zone, so the email is near the top of the inbox when they start work. Belkins recommends scheduling for 8 AM to 12 PM in the prospect's zone, not yours: a message sent at 9 AM from California reaches New York at noon and, for most of the year, London at 5 PM.
For a list spread across zones, send in batches so each group gets the same local time. Paste the prospects' phone numbers or cities above and the schedule gives the batch times. Keep each inbox inside its daily sending limit across all batches.
Should I send emails in my time zone or the recipient's?
The recipient's. Arrival time decides where the message sits in their inbox, and their working day is what you're aiming at. Newsletter platforms offer this as a feature: Mailchimp calls it Timewarp, which sends a campaign at the same local time in each subscriber's zone.
If your tool doesn't do it, split the list by zone and schedule each part, which is what the CSV from this calculator is for. Gmail and Outlook can also schedule a single message; see Gmail's help and Microsoft's.
How does daylight saving change the send time?
It moves the gap between zones for a few weeks a year, because countries change clocks on different dates. The US moves clocks in March and November and the EU at the end of March and October, so for part of spring and autumn New York is four hours behind London instead of five. A fixed "send 5 hours earlier" rule is wrong in those weeks.
The calculator works out each zone's offset on the date you pick, from the IANA time zone database built into your browser. UTC offsets you type, such as UTC+5:30, are used as fixed offsets without daylight saving, and the result says so.
Is this the same as send-time optimization?
| This calculator | Send-time optimization in an ESP | |
|---|---|---|
| Picks the local hour | You do | The platform, from each contact's past opens |
| Needs history per contact | No | Yes; new contacts get a default |
| Works for cold email | Yes | Rarely: no open history |
Who uses this tool, and for what?
- Cold emailers
- Turn a prospect list with phone numbers or cities into batch send times, so every prospect gets the email at the start of their day.
- Newsletter teams
- Plan a launch email to land at the same local hour in the US, Europe and Australia, with daylight saving handled for the date.
- Agencies
- Give a client a CSV schedule per region to load into a sending tool that can't send by recipient time zone itself.
- Recruiters
- Time outreach to candidates in other countries for their morning, from your own calendar.
What can’t this tool tell you?
- It doesn't know when your recipients read mail; the arrival time is your choice. Studies cited here are other companies' data.
- Countries that span time zones (US, Canada, Australia, Brazil, Mexico, Russia) need a city, zone or phone number, not the country name.
- A US or Canadian area code that spans two zones is placed in its first zone, and the result notes it. Mobile numbers can also move with their owners.
- It plans the moment you send. Queues, throttling and greylisting at the receiving end can delay arrival by minutes or more.
Common questions
- What is the best time to send email marketing?
- Weekday mornings in the recipient's local time are where published studies land, such as MailerLite's finding that opens peak between 8 and 11 AM on most weekdays. Test it on your own list; audiences differ.
- What is the best time to send a cold email?
- Early on a weekday in the prospect's time zone. Belkins' 2026 B2B data found 8 AM to 12 PM had the highest reply and meeting rates. Schedule by the prospect's zone, not yours.
- Does it matter what time you send an email?
- Somewhat. Arriving when people check mail keeps it near the top of the inbox, but the gaps between good times in published studies are small. A list of valid addresses and a relevant message matter more.
- What is the best time to send email newsletters?
- A consistent time your readers expect, usually a weekday morning in their zone. MailerLite's data shows opens peaking in the morning and clicks in the evening, so test against the metric you care about.
- Can you schedule an email to send at a certain time?
- Yes. Gmail and Outlook both have Schedule send for single messages, and sending tools schedule campaigns. Use this calculator to work out the time in your zone that matches the recipient's.
- Should you send emails at night?
- Usually not for business mail: a message sent at night is buried under the morning's mail by the time the recipient starts work. Schedule it to arrive in their morning instead.
- When is the best time to send cold emails to professors?
- On a weekday during their working hours in their university's time zone, avoiding exam periods and holidays. Paste the university's city to get the send time in yours.
Sources
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